I don't have a first gen turbo, so I'm not sure what kind of animal we are dealing with here. I can't tell much from ta0's pic, but is that thing hollow where it goes in the top? I just started with my turnin' skills, not sure I want to take that project on yet. If somebody does it for you I think you'll have to send the whole top to them so they could copy the body's angle and bottom diameter where it meets the tip.